Triden tier navigation

Has anyone modified the Triden Theme top navigation bar to multi-tier?
The Parent page appears in nav menu as predicted, but both children and grandchildren are listed in a single column when parent is rolled over.

    rgrone

    `
    <br />
    <br />
    <div id="navigation"><br />
    <ul id="nav"></p></p></p>
    <li><a href=""""<?php""">" title="Home">News</a>
    <ul>
    <li></li>
    <li></li>
    </ul>
    </li>
    <li><a href="""//www.worldnewsvine.com"""">Read More</a>
    <ul>
    <li><a href="""//www.worldnewsvine.com/pages/united_nations_coverage.html"""">UN News</a></li>
    <li><a href="""//www.worldnewsvine.com/pages/international_news.html"""">World News</a></li>
    <li><a href="""//www.worldnewsvine.com/pages/international_business.html"""">Business</a></li>
    <li><a href="""//www.worldnewsvine.com/pages/international_markets_economy.html"""">Economy</a></li>
    <li><a href="""//www.worldnewsvine.com/pages/us_newspapers.html"""">US Newspapers</a></li>
    </ul>
    </li>
    <li><a href="""//www.worldnewsvine.com/pages/us_lifestyle.html"""">Learn More</a>
    <ul>
    <li><a href="""//www.worldnewsvine.com/pages/employment_search.html"""">Job Watch</a></li>
    <li><a href="""//www.worldnewsvine.com/pages/international_entertainment.html"""">Entertainment</a></li>
    <li><a href="""//www.worldnewsvine.com/pages/international_sports.html"""">Sports</a></li>
    <li><a href="""//www.worldnewsvine.com/pages/governments_in_action.html"""">Government Watch</a></li>
    <li><a href="""//www.worldnewsvine.com/pages/health_and_fitness.html"""">Health and Fitness</a></li>
    </ul>
    </li>
    <li><a href="""//www.worldnewsvine.com"""">Blog More</a>
    <ul>
    <li><a href="""//www.worldnewsvine.com/pages/technology.html"""">Technology News</a></li>
    <li><a href="""//www.worldnewsvine.com/pages/travel_and_leisure.html"""">Travel</a></li>
    <li><a href="""//www.worldnewsvine.com/pages/national_weather_service.html"""">National Weather Center</a></li>
    <li><a href="""//www.worldnewsvine.com/pages/editorials-opinions.html"""">Editors Take</a></li>
    <li><a href="""//www.worldnewsvine.com/pages/oddly_enough.html"""">Oddly Enough</a></li>
    </ul>
    </li>
    <li><a href="""//worldnewsvine.info"""">Forums</a>
    <ul>
    </ul>
    </li>
    <li><a href="""//worldnewsvine.net/wp-signup.php"""">Become A Member</a></li>
    <li><a href=""""#""""></a></li>
    <p><p><p><div class="rss-feeds"><a href=""""<?php""">">News Feed</a></div><br />
    </div><br />
    `

    Well anyway there it is